625025565 has 40 divisors (see below), whose sum is σ = 1156581888. Its totient is φ = 322587360.

The previous prime is 625025563. The next prime is 625025573. The reversal of 625025565 is 565520526.

625025565 is a `hidden beast` number, since 625 + 0 + 25 + 5 + 6 + 5 = 666.

It is not a de Polignac number, because 625025565 - 2¹ = 625025563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625025561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12337 + ... + 37446.

Almost surely, 2^625025565 is an apocalyptic number.

It is an amenable number.

625025565 is a deficient number, since it is larger than the sum of its proper divisors (531556323).

625025565 is a wasteful number, since it uses less digits than its factorization.

625025565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49831 (or 49822 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 625025565 is about 25000.5112947716. The cubic root of 625025565 is about 854.9996306554. Note that the first 3 decimals are identical.

The spelling of 625025565 in words is "six hundred twenty-five million, twenty-five thousand, five hundred sixty-five".